Diffusion- and perfusion-weighted MRI. The DWI/PWI mismatch region in acute stroke.

@article{NeumannHaefelin1999DiffusionAP,
  title={Diffusion- and perfusion-weighted MRI. The DWI/PWI mismatch region in acute stroke.},
  author={Tobias Neumann-Haefelin and Hans J{\"o}rg Wittsack and Frank Wenserski and Mario Siebler and R{\"u}diger J. Seitz and Ulrich M{\"o}dder and H. J. Freund},
  journal={Stroke},
  year={1999},
  volume={30 8},
  pages={1591-7}
}
BACKGROUND AND PURPOSE Diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI) are relatively new MR techniques increasingly used in acute stroke. During the first hours of stroke evolution, the regions with abnormal perfusion are typically larger than the DWI lesions, and this mismatch region has been suggested to be "tissue at risk." The aim of this study was to evaluate the PWI/DWI mismatch region in acute stroke patients and find parameters indicative of both infarct… CONTINUE READING
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